Resonator-switch.



No. 785,266. PATENTED MAIL-21, 1905.

H.l c. MOYER.

RESONATOR SWITCH.

APPLIOATION FILED H1B. 1904.

UNITED STATESv Patented March-21, 1905.

PATENT OFFICE.

HAROLD C. 'MOYER, OF SPRINGFIELD, ILLINOIS.

, RESONATOR-SWITCH.

SPECIFICATION forming` part 0f Letters Patent N 0.' 785,266, dated March 21 1905. Application filed February 8, 1904. Serial No. 192.549.

To all whom t muy concern.-

Be it known that I, I-IARoLD C. MOYER, a citizen of the United States, residing at Springfield, in the county of Sangamon and State of Illinois, have invented a certain new and useful Improvement in Resonator-Switches, of

' which the following is such-a full, clear, and

exact description as will enable others skilled c in the art to which it appertains to make and use my said invention.

My invention relates to switch devices usable with telegraph instruments and adapted to open and close the circuit,so as to control the use of any one ofa number of sets of telegraph instruments.

The purposes of my invention are to provide, in connection with a series of sets of telegraph instruments, (each set consisting of a sounder and a relay) a Switch adapted to connect and disconnect said sets of instruments, respectively, with a single resonator so situated that the operator may have convenient and effective control of all of the instruments connectible with the resonator, to provide novel and improved means for opening or closing the electric circuits of the 'instruments, and to provide a simple and effective system of wiring for connecting the instruments as described.

With these ends in view my invention consists in the novel features of construction and combinations of parts shown in the annexed drawings, to which reference is hereby made, and hereinafter particularlyA described, and nally recited in the claim.

Referring to the drawings, in which similar reference characters designate like parts in the several views, Figure l is a perspective view of the resonator-switch, the cover being removed to expose the underlying parts. Fig. 2 is an enlargedbottom plan showing the wiring of the resonator-switch. Fig. 3 is. a diagram. showing a resonator-switch, a resonator and a series of sets of telegraphic instruments in operative relation to each other.

In practical telegraphy it often happens that a single operator has charge of a number of sets of telegraph instruments and in addition has to perform various clerical duties involving the use of a type-writer. It is the common practice to print, by means of a type- Wrlter, the messages received through the sounders. In offices using a number of sets of telegraphic instruments it is customary in order to avoid as far as possible the confusion resulting from the simultaneous clicking of all the instruments to place each set of instruments in a separate stall or box. This arrangement necessitates not only constant alertness ofthe operator to the calls of all of the instruments, but also necessitatesthe moving of the type-'writer into convenient position to receive messages from the instruments in the respective boxes. My invention enables the operator to keep his typewriter in convenient position for the performance of his clerical duties and to receive all messages through a single resonator conveniently situated relative to the typewriter. i

I have shown in the drawings and will hereinafter describe a resonator-switch having three sets of plates and connectible with three sets of telegraph instruments. By increasing the number of plates and connections Vof the resonator-switch its capacity may be enlarged to accommodate any desired number of sets of telegraph instruments.

A` cabinet or case A of suitable form and material contains a plate B, of wood or other insulating Vmaterial. Binding-posts 1, 2, 3, 4, 5, 6, 7, and 8 of any suitable construction are situated on the base of the case in convenient position for connection with telegraph instruments. Conducting-plates are secured on the insulating-plate B. One of these conducting-plates consists of three members d, d, and d2, another consists of three members e, e', and e2, and the third consists of three members f, f, and f2. The member d is slightly separated from the members d and d2, the ends of the members being shaped to form between the memberscircular openings d3 and d4, adapted to receive a circular metallic plug D, as hereinafter explained. The members of the other plates are separated in exactly the same manner to form openings e3, e, f3, and f 4 to receive the plugs "E and F, respectively. The conducting-plates, each consisting of three members, as described, are V-shaped. This form of the conductingplates is of practical value, because it admits of a very compact arrangement of the plates, such as is shown in Fig. 2.

Wires G or other electrical conductors connect the members .of the Vconducting-plates with the binding-posts in the following order-viz., the memberf with the post 1, the member f2 with the post 2, the member e with the post 3, the member e2 with the post 4, the member d with the post 6, the member d? with the post 5, and the members f e' and d' with the post 7.

Sounders H, H', and H2 and relays K, K', v

and K2 are arranged in sets, one sounder and one relay in each set. Batteries M M', and M2 have one pole of each battery connected with the relays K, K', and K2 by connectingwires m, m and m2.

A resonator N of any suitable construction is `connected with the resonator-switch by conducting-wires n, secured in the bindingposts of the resonator and respectively connected with the posts 7 and 8 of the resonator-switch. The resonator is preferably placed in a convenient position relative to a type-writer O.

One pole of each of the batteries M, M', and M2 is connected with a binding-post 1, 3, and 6 of the resonator switch by conductors m3, m4, and m5, respectively. The other pole of the batteries is connected with the relays K, K', and K2 by the conductors m, m', and m2, respectively. The Sounders H, H', and H2 are respectively connected with the binding-posts 2, 4, and 5 by conductors 71,3, h4, and h5. Conductors h, 7L', and h2 connect the Sounders and relays in sets, as shown. The relays K, K', and K2 are all connected with the post 8 by conductors k, lc', and k2, respective y.

Metal plugs D, E, and F iit in the openings between the members of the conductingplates, so as to close the openings in which the plugs are respectively inserted and establish electrical connection between the members of the plate contacting with the plugs. The plug-openings d3 and d4 between the plate members are exactly alike, so that the plug D will iit in either of the openings. The plug E will fit in either of the openings e3 and e4, and the plug F will iit in either of the openings f3 and f 4.

When the plug F is in the opening f3, the battery M, the relay K, the sounder H, and the conducting plate members f2 and f, with their connecting-wires, constitute an electric circuit through which the relay and sounder operate independently of the resonator. If the plug F be withdrawn from the opening f 3 and placed in the opening f4, the electric circuit will be through the battery M, the plate members f f the resonator N, and the relay K. The plugs E and D may be used in like 65 manner to respectively control the operation of the other two sets of telegraph instruments to bring them in connection with or disconnect them from the resonator.

By reference to the drawings it will appear that the construction and arrangement of the resonator-switch and the connections of the resonator and the telegraph instruments with the switch are such that either set of telegraph instruments may be made to operate independently of ,the resonator or either relay may be operated in connection with the resonator. If it is desired to operate the relay K. and the sounder H independently of the resonator, it is only necessary to place the plug F in the opening f3. The circuit will then be from the batteryM, along the conductor m3, to the post l, thence along the conductor G to the plate member f, thence through the plug F, thence along the plate member f2, thence through the conductor h3 to the sounder H, and thence through the relay K back to the battery. To connect the relay K with the resonator N, the plug F will be removed from the opening 3 and inserted in the opening f4. The circuit will then be from the battery M, along the conductor m, to the relay K, thence along the conductor 7c to the post 8, thence along the conductor n to the resonator N, thence along the conductor to the post 7, thence along the conductor to the plate member f thence through the plug F to the plate member f, thence along the conductor G to the post l, and thence along the conductor m2 back to the battery.

To operate the relay K' and the sounder H independently of the resonator, the plug E will be placed in the opening e3. The circuit will then be from the battery M' to the post 3, thence to the plate member e, thence through the plug E to the plate member e2, thence to the post 4, thence to the sounder H', thence to the relay K', and thence back to the battery.

To operate the resonator N in connectionwith the relay K', the plug E will be placed in the opening e4. The circuit will then be from the battery M' to the relay K', thence to the post 8, thence to the resonator N, thence to the post 7, thence to the plate member e', thence through the plug E to the plate member e, thence to the post 3, and thence back to the battery.

To operate the relay K2 and the sounder H2 independently of the' resonator, the plug D will be -placed in the opening d3. The circuit will then be from the battery M2 to the post 6, thence to the plate member d, thence through the plug D to the plate member d2, thence to the post 5, thence to the sounder H2, thence to the relay K2, and thence back to the battery.

To operate the resonator N in connection IOO IIO

with the relay K2, the plug D will be placed in the openingd The circuit will then be from the battery M2 to the relay K2, thence to the post 8, thence to the resonator N, thence to the post 7, thence to the plate member d', thence through the plug D to the plate member d, thence to the post 6, and thence back to the battery. y From the foregoing it will be seen that one terminal of leach of the batteries is connected with a member of the conducting-plates, respectively, and the other terminals of said batteries are connected with the relays, respectively, the relays are connected with the Sounders, respectively, the Sounders are respectively connected with a member of the conducting-plates, all of the relays are coni nected with the post 8, one member of each of the conducting-plates is connected with the post 7, and one terminal of the resonator N is connected with the post 7, and the other terminal is connected with the post 8f. The resonator therefore is constantly in connection with all of the relays and with one member of each of the conducting-plates. When the plugs D, E, and F are in the openings d3, e3, and f3, the relay and the sounder of each set coperate with each other. When the plugs are withdrawn from the openings d3, e3, and f3 and placed in the openings d4, e4, and j", the Sounders are cut out and the relays respectively coperate with the resonator.

E Having fully described my invention,what

I claim as new, and desire to secure by Letters Patent, is-

In an apparatus of the class described, the combination of a number of V-shaped conducting-plates each consisting of three elec-- trically-separate members; a corresponding number of batteries h'avinfr one terminalV connected with a member of said plates respectively, a correspondin number of relays res ectively connecte with the other termina of said batteries; a corresponding number of sounders connected with said relays respectively and also connected with one member of said conducting-plates respectively; a common conductor such as a post 7, connected with one member of eac'h of said conducting plates, a common convductor such as a post 8 connected with each of said relays, and a resonator having one terminal connected with the conductor common to the conducting-plates and the other terminal connected with the lconductor common to said relays, and plugs fitting in the openings between the members of said conducting-plates, as set forth. n

In witness whereof I have hereunto subscribed my name, at Springfield, Illinois, this 1st day of December, 1903.

HAROLD C. MOYER.

Witnesses:

J ERNEST CALDWELL, O. D. DU Bois. 

